5.41 PMV - driver - administration
1. (Application) This instruction applies to instruction 5.40 (PMV - Driver).
2.(Maximum Distance) Except when unusual operational imperatives demand otherwise, an approving authority shall not require a member to drive on duty travel more than 500 kilometres per day during regular work hours.
3.(Cost Comparison) The cost comparison required under paragraph 5.40(2)(b) shall be calculated in a manner determined by and on a form issued by the DGCB.
4.(Refusal of request)
A member cannot be ordered and is never obliged to use a PMV for duty travel.
And if the mbr is requested to use PMV and does...CFTDI Ch 5, 5.40.
5.40 PMV - driver
1.(Member Is Requested To Use PMV) Subject to paragraph 5.20(2) (Selection), a member - who is requested by an approving authority to use a PMV on duty travel and who uses that PMV as requested - is entitled to be reimbursed:
a.the kilometric rate for the direct road distance;
b.the actual and reasonable parking expenses during the TD or attached posting; and
c.if the member is required to purchase additional insurance to carry passengers for business purposes, the actual and reasonable expenses of that additional insurance.
Also, it's worth having a look at the CFTDI Ch 2 Definitions of Temporary Duty and Permanent & Temporary Workplace.
permanent workplace
a.in respect of a member who is listed on a Primary Reserve List and is serving on Class A, B, or C Reserve Service, the location — inside a place of duty — at which the member performs that Reserve Service; and
b.in any other case, the location — inside a place of duty — of the establishment or other position to which a member is posted — not attached — to perform duty.
temporary duty
a.an attachment - for less than 181 days - outside a member’s place of duty and includes duty travel for the purposes of that attachment; or
b.a duty performed - for less than 181 days - at a temporary workplace and includes duty travel for the purposes of that duty.
temporary workplace
a location — inside a place of duty — at which a member performs duty but does not include the member’s permanent workplace.
The Place of Duty definition in the CFTDI refers back to the definition found in
CBI 208.80 which is:
place of duty
means the place at which an officer or non-commissioned member usually performs their normal military duties and includes any place in the surrounding geographical area that is determined to be part thereof by the Chief of the Defence Staff or such other officer as the Chief of the Defence Staff may designate.
Sounds to me like the mbr in your scenario is being asked to use their PMV to travel to a temporary workplace.